Question

x-9÷√x+3x

Answer 1

sorry no x on the last 3

Answer 2

\[
\frac{x-9}{\sqrt{x+3}}?
\]And what are we supposed to do with it, rationalize it?

Answer 3

What are you supposed to do with it?

Answer 4

the square root is only over the x at the bottom

Answer 5

Okay, \(
\dfrac{x-9}{\sqrt{x}+3}
\), what are we doing with it?

Answer 6

on my worksheet it just saids to simplify it

Answer 7

Okay, multiply the top and bottom both by \(\sqrt{x}-3\). This is known as the conjugate of the denominator.

Answer 8

ok so on the top would you get x√(x)-3x-9√(x)+27

Answer 9

I wouldn't actually multiply it through. Expand the denominator and see if you can cancel something out :)